It's been a very long time since we heard anything at all about an Android version - obviously, it will appear WIR (obviously...); but as the OP asks, is there any hint at all as to how it's doing? Nothing at all specific, it would just be nice to know if it's

a) only an idea (still years away)
b) someone's pet project (test versions may appear in a year or two)
c) being worked on by a small number of people (test versions may appear after several months)
d) an active project (test versions could appear this year)
e) a high behind-the-scenes priority (get ready for a nice surprise soon...)

@uzma: It will have a UI and features that the developer feel work well in a phone interface. For this reason, it can't be in any way identical to the desktop version, but it also will not be like other Android browsers, as the aim will not be to strip it down.

What would set it apart from other browser would be working chrome extensions. Currently only Firefox includes them, but they obviously don't feature chrome extension.

No, not only FF. Yesterday i installed Yandex Browser on my Android phone, & today i discovered it can use some Chrome extensions [eg, Ghostery]. Unfortunately though it refused to install uBlock Origin, despite it also being in the Yandex Chrome Extension Store.

@uzma: Jon has not said. I suspect that as soon as a version is reasonably ready it will be released, and then it will be aggressively developed and updated, much as the desktop client has been. Whether that first release is called Tech Preview or Beta or Ver 0.5, matters little. They'll try not to release anything that will blow up on a user, or have no appealing features, but it won't be the final version, either.